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Finding the Fourth Proportional to 424,541.04, 636,788.52 and 129,030

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Solution

The fourth proportional to 424,541.04, 636,788.52 and 129,030 is: 193,538.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,541.04 : 636,788.52 = 129,030 : x
  2. Step 2: Convert to fraction form
    424,541.04/636,788.52 = 129,030/x
  3. Step 3: Cross multiply
    424,541.04x = 636,788.52 × 129,030
  4. Step 4: Simplify right side
    424,541.04x = 82,164,822,735.60
  5. Step 5: Solve for x
    x = 82,164,822,735.60/424,541.04
  6. Step 6: Final answer
    x = 193,538.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.